Far-infrared emission and Stark-cyclotron resonances in a quantum-cascade structure based on photon-assisted tunneling transition

被引：27

作者：

Blaser, S ^{[1
]}

Rochat, M

Beck, M

Faist, J

Oesterle, U

机构：

[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland

[2] Swiss Fed Inst Technol, Inst Micro & Optoelect, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.61.8369

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Intersubband electroluminescence has been investigated in a quantum cascade structure based on a photon-assisted tunneling transition designed for far-infrared emission. Transport measurements in the presence of a strong magnetic field perpendicular to the layers have been performed showing a strong increase of the lifetime increasing the magnetic field. In addition, Stark-cyclotron resonances were observed when the n=0 Landau level of an excited state is resonant with a Landau level of higher index of the lower state. Finally, good agreement was found between the electronic spectrum derived by the spectral characterization of the luminescence and the location of the Stark-cyclotron resonances in the transport data.

引用

页码：8369 / 8374

页数：6

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